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01-28-2007, 04:17 PM
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#1
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What gears are better for a turbo?
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Registered User
Join Date: Jan 2007
City: Oaklawn
State: Illinois
Posts: 22
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Hi,
For a while Ive been wanting to put a new rear end gear on my car. I pretty much had my mind set on getting 4.10's. The thing is though I also plan to turbocharge my v6, and Ive read that if you have 4.10's on. The turbo wont spool as fast. I just race stoplight to stoplight, so torqe is pretty important. What do you guys think .Will The 4.10's slow me down instead of helping me.
Thanks
(2004 v6 auto) |
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01-28-2007, 05:11 PM
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#2
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Re: What gears are better for a turbo?
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^needs more bondo
Join Date: Sep 2003
City: Modesto
State: California
Posts: 9,573
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its possible due to the torque multiplication factor that there will be less load placed on the motor, however its effects on spool IMO would be minimal at best.
btw, if you race stoplight to stoplight, why are you going turbo? are you using smaller turbo's that spool quicker to give you more or a low-mid range powerband, or a larger turbo(s) that will give you more up top?
__________________
-Thomas-
2003 Redfire Cobra "Ruby" - Mine Again!
1990 Eclipse GSX - Project "What the Hell is that clunking noise and where did my power steering go?!"
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01-28-2007, 08:32 PM
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#3
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Re: What gears are better for a turbo?
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Registered User
Join Date: Jan 2007
City: Oaklawn
State: Illinois
Posts: 22
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I would like to go turbo mainly because this is my daily driver ,and would like to put less wear and tear on my engine. However what Im aiming for is more low end.
The turbo that Im looking at getting is the street kit from TMA turbo.
Is this a good way to go, or is there a better more practical way that I should be looking at concerning my goal? |
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01-29-2007, 02:20 PM
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#4
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Re: What gears are better for a turbo?
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I Like Jiblits
Join Date: Jul 2006
City: Hampton
State: Virginia
Posts: 1,519
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Yes the TMA kit's are awsome just tell Andy what your looking to do and he will give you the right size turbo for your goals. I got a rather larget turbo for a stock 3.8 but I am building a forged 4.2 now so I didnt want to have to upgrade. As for the gears do not go higher than 3.55's for 5spd and 3.73's for 4r70w if your going turbo.I am going down to 3.73's to stay in the boost a little longer. |
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02-04-2007, 01:37 PM
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#5
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Re: What gears are better for a turbo?
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No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 893
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your stock 3.27 gears will do just fine.... and how will having a turbo put less wear and tear on your engine?
__________________
99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature 
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02-04-2007, 02:11 PM
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#6
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Re: What gears are better for a turbo?
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broken hearted
Join Date: Jan 2005
State: New Jersey
Posts: 5,621
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+1 on the wear and tear....if anything u have to make sure that your engine is ready to put a turbo on it or otherwise, u'll be screwed...
__________________
In God We Trust. All Others Checked NCIC.
Full Roush Kit + Dual Side Exit Exhaust, Steeda Ultralite IIs and a lot more to come..its a work in progress 
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02-04-2007, 03:11 PM
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#7
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Re: What gears are better for a turbo?
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Sometimes I feel Like a Nut!
Join Date: Jul 2003
State: Connecticut
Posts: 8,504
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guess he was meaning unlike a s/c it takes power to make power deal
__________________
 1989 5.0 - Mustang Brandy the NOW It can Barely Idle B**ch  1999 Jeep Cherokee Sport 4.0 - Yeah Its Gotta Baby Dick Lift |
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02-04-2007, 10:17 PM
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#8
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Re: What gears are better for a turbo?
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Registered User
Join Date: Jan 2007
City: Oaklawn
State: Illinois
Posts: 22
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What I meant was , I can control the boost level, so im not constantly pushing out the same psi all the time, as I would with a supercharger. Im sure that makes a little diffrence on the life on my engine. Hopefully Im understanding correctly. |
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02-05-2007, 12:10 AM
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#9
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Re: What gears are better for a turbo?
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^needs more bondo
Join Date: Sep 2003
City: Modesto
State: California
Posts: 9,573
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your set boost limit only comes into effect at WOT. the only time you will make full boost is at WOT, so setting it at any level other than the desired setting for full throttle would be useless during your commute.
any driving you do under the boost spectrum will not change the amount of boost you make regardless of what you have it set at.
if you want less wear and tear, dont go WOT as often.
__________________
-Thomas-
2003 Redfire Cobra "Ruby" - Mine Again!
1990 Eclipse GSX - Project "What the Hell is that clunking noise and where did my power steering go?!"
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02-05-2007, 07:13 AM
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#10
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Re: What gears are better for a turbo?
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Registered User
Join Date: Jan 2007
City: Oaklawn
State: Illinois
Posts: 22
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02-05-2007, 10:48 AM
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#11
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Re: What gears are better for a turbo?
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I need bolts
Join Date: Oct 2004
City: Dallas PA
State: Pennsylvania
Posts: 3,478
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What PSI can he run on the stock block?
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02-05-2007, 10:50 AM
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#12
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Re: What gears are better for a turbo?
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I Like Jiblits
Join Date: Jul 2006
City: Hampton
State: Virginia
Posts: 1,519
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10 is pretty safe but its all in the tune. I could have prolly went to 12psi because we were conservative on the timing and A/F, but id rather be safe than sorry |
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